ToME: the Tales of Maj'Eyal

I've been interested in building some of the ideas I've had for races and classes (and maybe making a quest module for the contest), but I don't really know where to start with any of it. Are there any resources out there for beginners I can read?

1: http://te4.org/wiki/Addons

2: download some addons, unzip them, and read them

Thank you. That's just about all the information I needed.